Heater.



INVENTOR mm am lsw fimmk gfiiog PATENTED JULY 31, 1906.

2 SHiiETS-SHEET 1.

ATTORNEY A M LOUDON & F L HOGG HEATER. APPLICATION FILED SEPT 6 1905 WITNESSES PATENTED JULY 31, 1906.

A. M. LOUDON & P. L. HOGG.

HEATER.

APPLICATION FILED SEPT. 6.1905.

2 SHEETS-SHEET 2.

t/vu/ ATTORNEY I b, 7 ,0. fiM V I UNITED STATES PATENT OFFICE.

AROHIBALD M. LOUDONAND FRED ERICK L. HOGG, OF ELM'IRA,

' NEW YORK.

HEATER.

Specification of Letters Patent.

Patented July 31, 1906 Application filed September 6, 1905. Serial No. 277,143.

To all whom it may concern:

Be it known that we, AROHIBALD M. LOU- DON and FREDERICK L. Hoes, citizens of the United States, residing at Elmira, in the county of Chemung and State of New York, have invented certain new and useful Improvements in Heaters, of which the following is a specification.

This invention relates to improvements in steam and hot-Water heaters adapted for house-heatingsy stems; and one object of our mprovements is to provide means for utiliz-' ing to a greater extent than heretofore the heat at the center of the fire-box for heating the water by providing a central water-chamber which shall be in direct contact with the fire in the fire-box, thereby increasing the heating-surface and circulating effect in any given size of heater and materially increasing the efliciency thereof.

A further object is to so arrange the parts of the heater that the circulation of the gases of combustion as they pass from the fire-box to the smoke-pipe will be such that the greatest possible amount of heat will be extracted therefrom before the gases are permitted to escape from the heater without retarding the flows of the gases through the heater.

We attain these objects byarranging the several parts of the heater in the manner illustrated in the accompanying drawings, in which Figure 1 represents a front elevation of our improved heater; Fig. 2, a rear elevation of the dome or top section of the heater; Fig.3, a plan view of the heater; Fig. 4, a vertical sectional view of the heater on the lines 4 4 in Figs. 5 and 6; and Figs. 5 and 6 horizontal sections on the lines 5 5 and 6 6, respectively, in Fig. 4.

Like reference-letters indicate like parts in the several views.

The heater, as herein illustrated, consists of three sections placed one above the other. Of these three sections the larger section A constitutes the main section and rests upon a suitable ash-box or base. (Not shown.) The heater is preferably of cylindrical form, and the main section A comprises an outer annular chamber or leg B and a central water-chamber O, the space between the waterchambers B and C constituting the fire-box, for which a suitable grate E is provided at the bottom of the section. The central water-chamber (3 is preferably conical in form, increasing in diameter as it rises toward the longitudinal top waterspace F, by which the central and-outer water-chambers are connected at the top of the section. tral water-chamber is further connected to the outer water chamber or leg B by means of a series of hollow ribs-or wings D, whereby additionalheating-surface is provided and whereby also a more rapid and free circulation from the central water-space to the outer water-space is insured. These wings also serve to strengthen and brace the shell of this central chamber. Between the wings D vertical flues Gpass through the upper water-space F to permit the gases of combus- The cention to rise into the upper lines of the heater. Above the main heater-section we provide intermediate section is a top section or dome J, coupled thereto by a large central castiron nipple H. This dome-section is pro" vided at one side with a vertical flue L, which connects with a horizontal flue M, which passes from one side of the dome to the other and is completely surrounded by the water and steam contained in the dome. This horizontal flue connects with the smoke-pipe, and from it the gases of combustion are carried away from the heater. The steam or hot water in the heater passes out to the circulating system at the top of the dome through a suitable pipe connection at N, the return being effected by suitable pipe connections to the water-leg at points A. Fresh water will also be admitted to the heater by way of the water-leg.

The horizontal flue-spaces between sections are closed by means of sectional castiron rings 0, which are fitted together by lapjoints and bolted in place, as indicated at P, after the sections are assembled, suitable packing being provided where the rings engage the section sides to make a smoke-tight joint. These rings are provided with inwardly-projecting lugs Q, which rest upon the lower sections to properly support and positlon the rings with reference to the sections.

To provide for the proper circulation of the water from the central water-space which receives the greatest heat to the outer water space or leg of the heater,we connect the leg at R by way of the pipes S and T and the T connection U to the bottom of the central water-chamber, there being preferably two of these connections set at diametrically opposite points. We further provide for a circulation from the top or dome to the leg of the heater by means of the connections W and the pipes V, leading into the connections B. To insure the proper circulation from the dome to the leg and from the leg to the central water-chamber, we make the connection R in the form of a two-way T, as indicated in the drawings. The fire-box is fed by way of suitable openings at X, two of these openings being provided at diametrically opposite points in order that the coal may be properly distributed around the firebox, The rings 0 are provided with cleanout openings at Y, and the smoke-flue is provided at the rear with a clean-out opening at Z. All of said openings are closed by doors in the usual manner. By this arrangement of the heater it will be seen that we provide for utilizing the heat at the center of the firebox, where the fire is usually the hottest, for heating a water-chamber in direct contact therewith, and that we further so arrange the parts of the heater that the heat from the gases of combustion as they pass through the heater will be utilized to the greatest possible extent for water-heating purposes. Where our heater is used for steam-heating purposes, the horizontal fine in the dome will act as a superheater for the steam contained in the top of the dome, thereby insuring a circulation of dry steam to the heating system.

Having thus described our improved heater, what we claim as our invention, and desire to secure by Letters Patent, is

1. A heater-section comprisin an outer water-chamber, a fire-b ox inclosed thereby, a central water-chamb er surrounded bythe firebox, a horizontal chamber or water-space provided with vertical flue-openings uniting the central chamber with the outer chamber at the top, all of said parts being formed in one casting, and a connection between the outer chamber and the bottom of the central chamber.

2. A heater-section comprisin an outer water-chamb er, a fire-box inclose thereby, a central water-chamber surrounded by the fire-b ox, a horizontal chamber or water-space provided with vertical flue-openings uniting the central chamber with the outer chamber at the top, said central chamber increasing in diameter from the. bottom upward, and a 00.11-

nection between the outer chamber and the bottom of the central chamber.

3. A heater-section comprising an outer water-chamber, a fire-box inclosed thereby, a central water-chamber surrounded by the fire-box, a horizontal chamber or water-space uniting the central chamber with the outer chamber at the top, a plurality of hollow ribs or wings extending from the central chamber to the outer chamber and connected at the top with the horizontal chamber, flue-openings in the horizontal chamber between said wings, and a connectionbetween the bottom of the central chamber and the outer chamber.

4. A heater comprising a bottom section consisting of an outer water-chamber, a firebox inclosed thereby, a central water-chamber surrounded by the fire-box, a horizontal chamber or water-space uniting the central chamber with the outer chamber at the top, one or more intermediate sections each consisting of a disk-shaped water-chamber coupled at the center to the horizontal chamber of the first section, and a top or dome section coupled at the center to the underlying intermediate section, said sections being spaced apart and provided with staggered vertical flues for the discharge of the gases of combustion, the dome being provided with one verti cal flue positioned at one side thereof and communicating with a horizontal flue which passes through the dome to the opposite side, where it connects with the smoke-pipe, and a circulating connection extending from the bottom of the central chamber to the outer chamber of the firstsection and to the domesection.

5. 'A heater comprising a bottom section consisting of an outer water-chamber, a firebox inclosed thereby, a central water-chamber surrounded by the fire-box and connected at the top and bottom with the outer waterchamber, a top or dome section positioned above and connecting with the first section, flues for the gases of combustion passing through and between the sections, and a circulating connection between the dome and the outer water-chamber of the flrstsection.

6. The combination, with a heater, of a ARCHIBALD M. LOUDON. FREDERICK L. HOGG,

Witnesses:

A. S. DIVEN, J. H. OBRIEN. 

